ALEXANDRIA, Va., March 17 -- United States Patent no. 12,581,812, issued on March 17, was assigned to Sharp K.K. (Sakai City, Japan).

"Display device" was invented by Jun Sakuma (Sakai City, Japan) and Yasushi Asaoka (Sakai City, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A display device with high operation stability is provided. The display device comprises a first substrate, a second substrate, and a conductive fluid. The first substrate has a first insulating plate and a switching element. The switching element is formed on the first insulating plate. The second substrate has a second insulating plate, a first electrode, a light-emitting layer, and a second electrode. The second insulating plat...